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Setup & Installation FAQ ​

Quick answers about installing the Dalton script, performance impact, supported platforms, and cookie consent.

Will it slow down my site? ​

No. Dalton loads in <50ms with zero performance impact on Core Web Vitals. No flickering, no layout shifts.

Will Dalton affect my SEO? ​

No. Dalton makes client-side changes only—search engines see your original page.

Should I use Google Tag Manager? ​

We recommend installing directly in your HTML <head> rather than GTM. Direct installation is faster and more reliable.

Yes. Dalton detects consent automatically and supports almost every banner out of the box, including OneTrust (C0002) and Google Consent Mode. Visitors see experiment variants regardless of consent — the anonymous experiment data lives in browser storage — and Dalton only writes its cookies once analytics consent is granted. See Cookies & Storage for the full list of cookies, the domains to allow in your CSP, and how to declare Dalton in your banner.

Which platforms are supported? ​

Any platform that outputs HTML: Shopify, Webflow, WordPress, Framer, React, Next.js, Vue, Angular, headless setups, and custom builds.

Does it work with headless/SPAs? ​

Yes. Dalton works at the HTML layer—no backend integration required.

Which languages are supported? ​

All languages. For multi-language sites, each language needs separate setup.